PayPal\PayPalAPI\GetTransactionDetailsReq::toXMLString PHP Method

    public function toXMLString()
    {
        $str = '';
        $str .= '<ns:GetTransactionDetailsReq>';
        if ($this->GetTransactionDetailsRequest != null) {
            $str .= '<ns:GetTransactionDetailsRequest>';
            $str .= $this->GetTransactionDetailsRequest->toXMLString();
            $str .= '</ns:GetTransactionDetailsRequest>';
        }
        $str .= '</ns:GetTransactionDetailsReq>';
        return $str;
    }